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Old 12-05-2019, 02:54 AM   #5
Senior Member
Brand: Still Looking
Model: Newmar Bay Star Sport 300
State: Alabama
Posts: 3,039
THOR #6826
Originally Posted by Thorfreedom View Post
Thanks Pete for replying. My rv has currently clear caulk and i think it’s silicon which came from factory. I called Thor and they told me to use silicon. If I go with any other products like you mentioned, will it bond with old silicon. I will clean and prep as much as possible. I was looking to use sikaflex 505 uv. I will appreciate if you can suggest some particular product that has good results.

Wow. I just don’t know about using silicone. In my experience not much sticks to it. I’ve always heard NOT to use it on an RV and I guess I’d try using the polyurethane stuff or lap sealant. I believe lap sealant is specifically made for RVs so maybe give that a try. Lots of people use the term “silicone” rather generically for any caulk (like calling any tissue a “Kleenex”) but you’d not think a Thor guy would make that mistake. I expect you’ll be fine whatever you use if you keep an eye on it going forward. Which you should be doing anyway. Good luck!
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